15721703320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{41299}}^1$

素因数の和:41648

約数の個数: 64

約数和(自身を含む): 36634752000

約数和(自身を除く): 20913048680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 307, 310, 614, 620, 1228, 1240, 1535, 2456, 3070, 6140, 9517, 12280, 19034, 38068, 41299, 47585, 76136, 82598, 95170, 165196, 190340, 206495, 330392, 380680, 412990, 825980, 1280269, 1651960, 2560538, 5121076, 6401345, 10242152, 12678793, 12802690, 25357586, 25605380, 50715172, 51210760, 63393965, 101430344, 126787930, 253575860, 393042583, 507151720, 786085166, 1572170332, 1965212915, 3144340664, 3930425830, 7860851660, 15721703320]

約数ペア:

[(1, 15721703320), (2, 7860851660), (4, 3930425830), (5, 3144340664), (8, 1965212915), (10, 1572170332), (20, 786085166), (31, 507151720), (40, 393042583), (62, 253575860), (124, 126787930), (155, 101430344), (248, 63393965), (307, 51210760), (310, 50715172), (614, 25605380), (620, 25357586), (1228, 12802690), (1240, 12678793), (1535, 10242152), (2456, 6401345), (3070, 5121076), (6140, 2560538), (9517, 1651960), (12280, 1280269), (19034, 825980), (38068, 412990), (41299, 380680), (47585, 330392), (76136, 206495), (82598, 190340), (95170, 165196)]