28105560

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:630

約数の個数: 192

約数和(自身を含む): 110073600

約数和(自身を除く): 81968040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 114, 120, 126, 133, 140, 152, 168, 171, 180, 190, 210, 228, 252, 266, 280, 285, 315, 342, 360, 380, 399, 420, 456, 504, 532, 570, 587, 630, 665, 684, 760, 798, 840, 855, 1064, 1140, 1174, 1197, 1260, 1330, 1368, 1596, 1710, 1761, 1995, 2280, 2348, 2394, 2520, 2660, 2935, 3192, 3420, 3522, 3990, 4109, 4696, 4788, 5283, 5320, 5870, 5985, 6840, 7044, 7980, 8218, 8805, 9576, 10566, 11153, 11740, 11970, 12327, 14088, 15960, 16436, 17610, 20545, 21132, 22306, 23480, 23940, 24654, 26415, 32872, 33459, 35220, 36981, 41090, 42264, 44612, 47880, 49308, 52830, 55765, 61635, 66918, 70440, 73962, 78071, 82180, 89224, 98616, 100377, 105660, 111530, 123270, 133836, 147924, 156142, 164360, 167295, 184905, 200754, 211320, 223060, 234213, 246540, 267672, 295848, 312284, 334590, 369810, 390355, 401508, 446120, 468426, 493080, 501885, 624568, 669180, 702639, 739620, 780710, 803016, 936852, 1003770, 1171065, 1338360, 1405278, 1479240, 1561420, 1873704, 2007540, 2342130, 2810556, 3122840, 3513195, 4015080, 4684260, 5621112, 7026390, 9368520, 14052780, 28105560]

約数ペア:

[(1, 28105560), (2, 14052780), (3, 9368520), (4, 7026390), (5, 5621112), (6, 4684260), (7, 4015080), (8, 3513195), (9, 3122840), (10, 2810556), (12, 2342130), (14, 2007540), (15, 1873704), (18, 1561420), (19, 1479240), (20, 1405278), (21, 1338360), (24, 1171065), (28, 1003770), (30, 936852), (35, 803016), (36, 780710), (38, 739620), (40, 702639), (42, 669180), (45, 624568), (56, 501885), (57, 493080), (60, 468426), (63, 446120), (70, 401508), (72, 390355), (76, 369810), (84, 334590), (90, 312284), (95, 295848), (105, 267672), (114, 246540), (120, 234213), (126, 223060), (133, 211320), (140, 200754), (152, 184905), (168, 167295), (171, 164360), (180, 156142), (190, 147924), (210, 133836), (228, 123270), (252, 111530), (266, 105660), (280, 100377), (285, 98616), (315, 89224), (342, 82180), (360, 78071), (380, 73962), (399, 70440), (420, 66918), (456, 61635), (504, 55765), (532, 52830), (570, 49308), (587, 47880), (630, 44612), (665, 42264), (684, 41090), (760, 36981), (798, 35220), (840, 33459), (855, 32872), (1064, 26415), (1140, 24654), (1174, 23940), (1197, 23480), (1260, 22306), (1330, 21132), (1368, 20545), (1596, 17610), (1710, 16436), (1761, 15960), (1995, 14088), (2280, 12327), (2348, 11970), (2394, 11740), (2520, 11153), (2660, 10566), (2935, 9576), (3192, 8805), (3420, 8218), (3522, 7980), (3990, 7044), (4109, 6840), (4696, 5985), (4788, 5870), (5283, 5320)]