742140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:72

約数の個数: 144

約数和(自身を含む): 2795520

約数和(自身を除く): 2053380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 31, 35, 36, 38, 42, 45, 57, 60, 62, 63, 70, 76, 84, 90, 93, 95, 105, 114, 124, 126, 133, 140, 155, 171, 180, 186, 190, 210, 217, 228, 252, 266, 279, 285, 310, 315, 342, 372, 380, 399, 420, 434, 465, 532, 558, 570, 589, 620, 630, 651, 665, 684, 798, 855, 868, 930, 1085, 1116, 1140, 1178, 1197, 1260, 1302, 1330, 1395, 1596, 1710, 1767, 1860, 1953, 1995, 2170, 2356, 2394, 2604, 2660, 2790, 2945, 3255, 3420, 3534, 3906, 3990, 4123, 4340, 4788, 5301, 5580, 5890, 5985, 6510, 7068, 7812, 7980, 8246, 8835, 9765, 10602, 11780, 11970, 12369, 13020, 16492, 17670, 19530, 20615, 21204, 23940, 24738, 26505, 35340, 37107, 39060, 41230, 49476, 53010, 61845, 74214, 82460, 106020, 123690, 148428, 185535, 247380, 371070, 742140]

約数ペア:

[(1, 742140), (2, 371070), (3, 247380), (4, 185535), (5, 148428), (6, 123690), (7, 106020), (9, 82460), (10, 74214), (12, 61845), (14, 53010), (15, 49476), (18, 41230), (19, 39060), (20, 37107), (21, 35340), (28, 26505), (30, 24738), (31, 23940), (35, 21204), (36, 20615), (38, 19530), (42, 17670), (45, 16492), (57, 13020), (60, 12369), (62, 11970), (63, 11780), (70, 10602), (76, 9765), (84, 8835), (90, 8246), (93, 7980), (95, 7812), (105, 7068), (114, 6510), (124, 5985), (126, 5890), (133, 5580), (140, 5301), (155, 4788), (171, 4340), (180, 4123), (186, 3990), (190, 3906), (210, 3534), (217, 3420), (228, 3255), (252, 2945), (266, 2790), (279, 2660), (285, 2604), (310, 2394), (315, 2356), (342, 2170), (372, 1995), (380, 1953), (399, 1860), (420, 1767), (434, 1710), (465, 1596), (532, 1395), (558, 1330), (570, 1302), (589, 1260), (620, 1197), (630, 1178), (651, 1140), (665, 1116), (684, 1085), (798, 930), (855, 868)]