4005820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 10838016

約数和(自身を除く): 6832196

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 71, 91, 124, 130, 140, 142, 155, 182, 217, 260, 284, 310, 355, 364, 403, 434, 455, 497, 620, 710, 806, 868, 910, 923, 994, 1085, 1420, 1612, 1820, 1846, 1988, 2015, 2170, 2201, 2485, 2821, 3692, 4030, 4340, 4402, 4615, 4970, 5642, 6461, 8060, 8804, 9230, 9940, 11005, 11284, 12922, 14105, 15407, 18460, 22010, 25844, 28210, 28613, 30814, 32305, 44020, 56420, 57226, 61628, 64610, 77035, 114452, 129220, 143065, 154070, 200291, 286130, 308140, 400582, 572260, 801164, 1001455, 2002910, 4005820]

約数ペア:

[(1, 4005820), (2, 2002910), (4, 1001455), (5, 801164), (7, 572260), (10, 400582), (13, 308140), (14, 286130), (20, 200291), (26, 154070), (28, 143065), (31, 129220), (35, 114452), (52, 77035), (62, 64610), (65, 61628), (70, 57226), (71, 56420), (91, 44020), (124, 32305), (130, 30814), (140, 28613), (142, 28210), (155, 25844), (182, 22010), (217, 18460), (260, 15407), (284, 14105), (310, 12922), (355, 11284), (364, 11005), (403, 9940), (434, 9230), (455, 8804), (497, 8060), (620, 6461), (710, 5642), (806, 4970), (868, 4615), (910, 4402), (923, 4340), (994, 4030), (1085, 3692), (1420, 2821), (1612, 2485), (1820, 2201), (1846, 2170), (1988, 2015)]