78078980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 199584000

約数和(自身を除く): 121505020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 149, 190, 197, 266, 298, 380, 394, 532, 596, 665, 745, 788, 985, 1043, 1330, 1379, 1490, 1970, 2086, 2660, 2758, 2831, 2980, 3743, 3940, 4172, 5215, 5516, 5662, 6895, 7486, 10430, 11324, 13790, 14155, 14972, 18715, 19817, 20860, 26201, 27580, 28310, 29353, 37430, 39634, 52402, 56620, 58706, 74860, 79268, 99085, 104804, 117412, 131005, 146765, 198170, 205471, 262010, 293530, 396340, 410942, 524020, 557707, 587060, 821884, 1027355, 1115414, 2054710, 2230828, 2788535, 3903949, 4109420, 5577070, 7807898, 11154140, 15615796, 19519745, 39039490, 78078980]

約数ペア:

[(1, 78078980), (2, 39039490), (4, 19519745), (5, 15615796), (7, 11154140), (10, 7807898), (14, 5577070), (19, 4109420), (20, 3903949), (28, 2788535), (35, 2230828), (38, 2054710), (70, 1115414), (76, 1027355), (95, 821884), (133, 587060), (140, 557707), (149, 524020), (190, 410942), (197, 396340), (266, 293530), (298, 262010), (380, 205471), (394, 198170), (532, 146765), (596, 131005), (665, 117412), (745, 104804), (788, 99085), (985, 79268), (1043, 74860), (1330, 58706), (1379, 56620), (1490, 52402), (1970, 39634), (2086, 37430), (2660, 29353), (2758, 28310), (2831, 27580), (2980, 26201), (3743, 20860), (3940, 19817), (4172, 18715), (5215, 14972), (5516, 14155), (5662, 13790), (6895, 11324), (7486, 10430)]