72450420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1297}}^1$

素因数の和:1342

約数の個数: 144

約数和(自身を含む): 248592960

約数和(自身を除く): 176142540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1297, 1330, 1470, 1596, 1862, 1995, 2594, 2660, 2793, 2940, 3724, 3891, 3990, 4655, 5188, 5586, 6485, 7782, 7980, 9079, 9310, 11172, 12970, 13965, 15564, 18158, 18620, 19455, 24643, 25940, 27237, 27930, 36316, 38910, 45395, 49286, 54474, 55860, 63553, 73929, 77820, 90790, 98572, 108948, 123215, 127106, 136185, 147858, 172501, 181580, 190659, 246430, 254212, 272370, 295716, 317765, 345002, 369645, 381318, 492860, 517503, 544740, 635530, 690004, 739290, 762636, 862505, 953295, 1035006, 1207507, 1271060, 1478580, 1725010, 1906590, 2070012, 2415014, 2587515, 3450020, 3622521, 3813180, 4830028, 5175030, 6037535, 7245042, 10350060, 12075070, 14490084, 18112605, 24150140, 36225210, 72450420]

約数ペア:

[(1, 72450420), (2, 36225210), (3, 24150140), (4, 18112605), (5, 14490084), (6, 12075070), (7, 10350060), (10, 7245042), (12, 6037535), (14, 5175030), (15, 4830028), (19, 3813180), (20, 3622521), (21, 3450020), (28, 2587515), (30, 2415014), (35, 2070012), (38, 1906590), (42, 1725010), (49, 1478580), (57, 1271060), (60, 1207507), (70, 1035006), (76, 953295), (84, 862505), (95, 762636), (98, 739290), (105, 690004), (114, 635530), (133, 544740), (140, 517503), (147, 492860), (190, 381318), (196, 369645), (210, 345002), (228, 317765), (245, 295716), (266, 272370), (285, 254212), (294, 246430), (380, 190659), (399, 181580), (420, 172501), (490, 147858), (532, 136185), (570, 127106), (588, 123215), (665, 108948), (735, 98572), (798, 90790), (931, 77820), (980, 73929), (1140, 63553), (1297, 55860), (1330, 54474), (1470, 49286), (1596, 45395), (1862, 38910), (1995, 36316), (2594, 27930), (2660, 27237), (2793, 25940), (2940, 24643), (3724, 19455), (3891, 18620), (3990, 18158), (4655, 15564), (5188, 13965), (5586, 12970), (6485, 11172), (7782, 9310), (7980, 9079)]