161878480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{379}}^1$

素因数の和:692

約数の個数: 80

約数和(自身を含む): 398635200

約数和(自身を除く): 236756720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 281, 304, 379, 380, 562, 758, 760, 1124, 1405, 1516, 1520, 1895, 2248, 2810, 3032, 3790, 4496, 5339, 5620, 6064, 7201, 7580, 10678, 11240, 14402, 15160, 21356, 22480, 26695, 28804, 30320, 36005, 42712, 53390, 57608, 72010, 85424, 106499, 106780, 115216, 144020, 212998, 213560, 288040, 425996, 427120, 532495, 576080, 851992, 1064990, 1703984, 2023481, 2129980, 4046962, 4259960, 8093924, 8519920, 10117405, 16187848, 20234810, 32375696, 40469620, 80939240, 161878480]

約数ペア:

[(1, 161878480), (2, 80939240), (4, 40469620), (5, 32375696), (8, 20234810), (10, 16187848), (16, 10117405), (19, 8519920), (20, 8093924), (38, 4259960), (40, 4046962), (76, 2129980), (80, 2023481), (95, 1703984), (152, 1064990), (190, 851992), (281, 576080), (304, 532495), (379, 427120), (380, 425996), (562, 288040), (758, 213560), (760, 212998), (1124, 144020), (1405, 115216), (1516, 106780), (1520, 106499), (1895, 85424), (2248, 72010), (2810, 57608), (3032, 53390), (3790, 42712), (4496, 36005), (5339, 30320), (5620, 28804), (6064, 26695), (7201, 22480), (7580, 21356), (10678, 15160), (11240, 14402)]