28778750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:76

約数の個数: 160

約数和(自身を含む): 75575808

約数和(自身を除く): 46797058

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 23, 25, 26, 35, 46, 50, 55, 65, 70, 77, 91, 110, 115, 125, 130, 143, 154, 161, 175, 182, 230, 250, 253, 275, 286, 299, 322, 325, 350, 385, 455, 506, 550, 575, 598, 625, 650, 715, 770, 805, 875, 910, 1001, 1150, 1250, 1265, 1375, 1430, 1495, 1610, 1625, 1750, 1771, 1925, 2002, 2093, 2275, 2530, 2750, 2875, 2990, 3250, 3289, 3542, 3575, 3850, 4025, 4186, 4375, 4550, 5005, 5750, 6325, 6578, 6875, 7150, 7475, 8050, 8125, 8750, 8855, 9625, 10010, 10465, 11375, 12650, 13750, 14375, 14950, 16250, 16445, 17710, 17875, 19250, 20125, 20930, 22750, 23023, 25025, 28750, 31625, 32890, 35750, 37375, 40250, 44275, 46046, 48125, 50050, 52325, 56875, 63250, 74750, 82225, 88550, 89375, 96250, 100625, 104650, 113750, 115115, 125125, 158125, 164450, 178750, 186875, 201250, 221375, 230230, 250250, 261625, 316250, 373750, 411125, 442750, 523250, 575575, 625625, 822250, 1106875, 1151150, 1251250, 1308125, 2055625, 2213750, 2616250, 2877875, 4111250, 5755750, 14389375, 28778750]

約数ペア:

[(1, 28778750), (2, 14389375), (5, 5755750), (7, 4111250), (10, 2877875), (11, 2616250), (13, 2213750), (14, 2055625), (22, 1308125), (23, 1251250), (25, 1151150), (26, 1106875), (35, 822250), (46, 625625), (50, 575575), (55, 523250), (65, 442750), (70, 411125), (77, 373750), (91, 316250), (110, 261625), (115, 250250), (125, 230230), (130, 221375), (143, 201250), (154, 186875), (161, 178750), (175, 164450), (182, 158125), (230, 125125), (250, 115115), (253, 113750), (275, 104650), (286, 100625), (299, 96250), (322, 89375), (325, 88550), (350, 82225), (385, 74750), (455, 63250), (506, 56875), (550, 52325), (575, 50050), (598, 48125), (625, 46046), (650, 44275), (715, 40250), (770, 37375), (805, 35750), (875, 32890), (910, 31625), (1001, 28750), (1150, 25025), (1250, 23023), (1265, 22750), (1375, 20930), (1430, 20125), (1495, 19250), (1610, 17875), (1625, 17710), (1750, 16445), (1771, 16250), (1925, 14950), (2002, 14375), (2093, 13750), (2275, 12650), (2530, 11375), (2750, 10465), (2875, 10010), (2990, 9625), (3250, 8855), (3289, 8750), (3542, 8125), (3575, 8050), (3850, 7475), (4025, 7150), (4186, 6875), (4375, 6578), (4550, 6325), (5005, 5750)]