664383680

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:778

約数の個数: 112

約数和(自身を含む): 1643725440

約数和(自身を除く): 979341760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 79, 80, 82, 158, 160, 164, 205, 316, 320, 328, 395, 410, 632, 641, 656, 790, 820, 1264, 1282, 1312, 1580, 1640, 2528, 2564, 2624, 3160, 3205, 3239, 3280, 5056, 5128, 6320, 6410, 6478, 6560, 10256, 12640, 12820, 12956, 13120, 16195, 20512, 25280, 25640, 25912, 26281, 32390, 41024, 50639, 51280, 51824, 52562, 64780, 101278, 102560, 103648, 105124, 129560, 131405, 202556, 205120, 207296, 210248, 253195, 259120, 262810, 405112, 420496, 506390, 518240, 525620, 810224, 840992, 1012780, 1036480, 1051240, 1620448, 1681984, 2025560, 2076199, 2102480, 3240896, 4051120, 4152398, 4204960, 8102240, 8304796, 8409920, 10380995, 16204480, 16609592, 20761990, 33219184, 41523980, 66438368, 83047960, 132876736, 166095920, 332191840, 664383680]

約数ペア:

[(1, 664383680), (2, 332191840), (4, 166095920), (5, 132876736), (8, 83047960), (10, 66438368), (16, 41523980), (20, 33219184), (32, 20761990), (40, 16609592), (41, 16204480), (64, 10380995), (79, 8409920), (80, 8304796), (82, 8102240), (158, 4204960), (160, 4152398), (164, 4051120), (205, 3240896), (316, 2102480), (320, 2076199), (328, 2025560), (395, 1681984), (410, 1620448), (632, 1051240), (641, 1036480), (656, 1012780), (790, 840992), (820, 810224), (1264, 525620), (1282, 518240), (1312, 506390), (1580, 420496), (1640, 405112), (2528, 262810), (2564, 259120), (2624, 253195), (3160, 210248), (3205, 207296), (3239, 205120), (3280, 202556), (5056, 131405), (5128, 129560), (6320, 105124), (6410, 103648), (6478, 102560), (6560, 101278), (10256, 64780), (12640, 52562), (12820, 51824), (12956, 51280), (13120, 50639), (16195, 41024), (20512, 32390), (25280, 26281), (25640, 25912)]