28041090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 128

約数和(自身を含む): 85708800

約数和(自身を除く): 57667710

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 61, 66, 70, 77, 105, 110, 122, 154, 165, 183, 199, 210, 231, 305, 330, 366, 385, 398, 427, 462, 597, 610, 671, 770, 854, 915, 995, 1155, 1194, 1281, 1342, 1393, 1830, 1990, 2013, 2135, 2189, 2310, 2562, 2786, 2985, 3355, 4026, 4179, 4270, 4378, 4697, 5970, 6405, 6567, 6710, 6965, 8358, 9394, 10065, 10945, 12139, 12810, 13134, 13930, 14091, 15323, 20130, 20895, 21890, 23485, 24278, 28182, 30646, 32835, 36417, 41790, 45969, 46970, 60695, 65670, 70455, 72834, 76615, 84973, 91938, 121390, 133529, 140910, 153230, 169946, 182085, 229845, 254919, 267058, 364170, 400587, 424865, 459690, 509838, 667645, 801174, 849730, 934703, 1274595, 1335290, 1869406, 2002935, 2549190, 2804109, 4005870, 4673515, 5608218, 9347030, 14020545, 28041090]

約数ペア:

[(1, 28041090), (2, 14020545), (3, 9347030), (5, 5608218), (6, 4673515), (7, 4005870), (10, 2804109), (11, 2549190), (14, 2002935), (15, 1869406), (21, 1335290), (22, 1274595), (30, 934703), (33, 849730), (35, 801174), (42, 667645), (55, 509838), (61, 459690), (66, 424865), (70, 400587), (77, 364170), (105, 267058), (110, 254919), (122, 229845), (154, 182085), (165, 169946), (183, 153230), (199, 140910), (210, 133529), (231, 121390), (305, 91938), (330, 84973), (366, 76615), (385, 72834), (398, 70455), (427, 65670), (462, 60695), (597, 46970), (610, 45969), (671, 41790), (770, 36417), (854, 32835), (915, 30646), (995, 28182), (1155, 24278), (1194, 23485), (1281, 21890), (1342, 20895), (1393, 20130), (1830, 15323), (1990, 14091), (2013, 13930), (2135, 13134), (2189, 12810), (2310, 12139), (2562, 10945), (2786, 10065), (2985, 9394), (3355, 8358), (4026, 6965), (4179, 6710), (4270, 6567), (4378, 6405), (4697, 5970)]