198917460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1235

約数の個数: 216

約数和(自身を含む): 739458720

約数和(自身を除く): 540541260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 114, 126, 133, 140, 147, 171, 180, 190, 196, 210, 228, 245, 252, 266, 285, 294, 315, 342, 380, 399, 420, 441, 490, 532, 570, 588, 630, 665, 684, 735, 798, 855, 882, 931, 980, 1140, 1187, 1197, 1260, 1330, 1470, 1596, 1710, 1764, 1862, 1995, 2205, 2374, 2394, 2660, 2793, 2940, 3420, 3561, 3724, 3990, 4410, 4655, 4748, 4788, 5586, 5935, 5985, 7122, 7980, 8309, 8379, 8820, 9310, 10683, 11172, 11870, 11970, 13965, 14244, 16618, 16758, 17805, 18620, 21366, 22553, 23740, 23940, 24927, 27930, 33236, 33516, 35610, 41545, 41895, 42732, 45106, 49854, 53415, 55860, 58163, 67659, 71220, 74781, 83090, 83790, 90212, 99708, 106830, 112765, 116326, 124635, 135318, 149562, 157871, 166180, 167580, 174489, 202977, 213660, 225530, 232652, 249270, 270636, 290815, 299124, 315742, 338295, 348978, 373905, 405954, 451060, 473613, 498540, 523467, 581630, 631484, 676590, 697956, 747810, 789355, 811908, 872445, 947226, 1014885, 1046934, 1105097, 1163260, 1353180, 1420839, 1495620, 1578710, 1744890, 1894452, 2029770, 2093868, 2210194, 2368065, 2617335, 2841678, 3157420, 3315291, 3489780, 4059540, 4420388, 4736130, 5234670, 5525485, 5683356, 6630582, 7104195, 9472260, 9945873, 10469340, 11050970, 13261164, 14208390, 16576455, 19891746, 22101940, 28416780, 33152910, 39783492, 49729365, 66305820, 99458730, 198917460]

約数ペア:

[(1, 198917460), (2, 99458730), (3, 66305820), (4, 49729365), (5, 39783492), (6, 33152910), (7, 28416780), (9, 22101940), (10, 19891746), (12, 16576455), (14, 14208390), (15, 13261164), (18, 11050970), (19, 10469340), (20, 9945873), (21, 9472260), (28, 7104195), (30, 6630582), (35, 5683356), (36, 5525485), (38, 5234670), (42, 4736130), (45, 4420388), (49, 4059540), (57, 3489780), (60, 3315291), (63, 3157420), (70, 2841678), (76, 2617335), (84, 2368065), (90, 2210194), (95, 2093868), (98, 2029770), (105, 1894452), (114, 1744890), (126, 1578710), (133, 1495620), (140, 1420839), (147, 1353180), (171, 1163260), (180, 1105097), (190, 1046934), (196, 1014885), (210, 947226), (228, 872445), (245, 811908), (252, 789355), (266, 747810), (285, 697956), (294, 676590), (315, 631484), (342, 581630), (380, 523467), (399, 498540), (420, 473613), (441, 451060), (490, 405954), (532, 373905), (570, 348978), (588, 338295), (630, 315742), (665, 299124), (684, 290815), (735, 270636), (798, 249270), (855, 232652), (882, 225530), (931, 213660), (980, 202977), (1140, 174489), (1187, 167580), (1197, 166180), (1260, 157871), (1330, 149562), (1470, 135318), (1596, 124635), (1710, 116326), (1764, 112765), (1862, 106830), (1995, 99708), (2205, 90212), (2374, 83790), (2394, 83090), (2660, 74781), (2793, 71220), (2940, 67659), (3420, 58163), (3561, 55860), (3724, 53415), (3990, 49854), (4410, 45106), (4655, 42732), (4748, 41895), (4788, 41545), (5586, 35610), (5935, 33516), (5985, 33236), (7122, 27930), (7980, 24927), (8309, 23940), (8379, 23740), (8820, 22553), (9310, 21366), (10683, 18620), (11172, 17805), (11870, 16758), (11970, 16618), (13965, 14244)]